.. _program_listing_file_include_gwmodelpp_utils_armampi.h:

Program Listing for File armampi.h
==================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_gwmodelpp_utils_armampi.h>` (``include/gwmodelpp/utils/armampi.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "armadillo_config.h"
   #include "mpi.h"
   
   #ifdef ARMA_32BIT_WORD
   #define GWM_MPI_UWORD MPI_UNSIGNED_LONG
   #else   // ARMA_32BIT_WORD
   #define GWM_MPI_UWORD MPI_UNSIGNED_LONG_LONG
   #endif  // ARMA_32BIT_WORD
   
   void mat_mul_mpi(arma::mat& a, arma::mat& b, arma::mat& c, const int ip, const int np, const size_t range);